The man, Nguyen Huu Viet, 47, was arrested without incident following the detection of the drugs by border guards.
Viet gave police a home address in the Quang Trung Ward of Uong Bi City in Quang Ninh Province.
Police say Viet admitted buying the drugs from a Chinese man for US$8,000 and hiding them in packages in an attempt to smuggle them across the border into Vietnam.
